FR689062A - Improvements in the electrical reproduction of sound from recording discs - Google Patents

Improvements in the electrical reproduction of sound from recording discs

Info

Publication number
FR689062A
FR689062A FR689062DA FR689062A FR 689062 A FR689062 A FR 689062A FR 689062D A FR689062D A FR 689062DA FR 689062 A FR689062 A FR 689062A
Authority
FR
France
Prior art keywords
sound
recording discs
electrical reproduction
reproduction
electrical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Laurence Herbert Pearson
Claude Marshall
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR689062A publication Critical patent/FR689062A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR689062D 1930-01-29 1930-01-29 Improvements in the electrical reproduction of sound from recording discs Expired FR689062A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR689062T 1930-01-29

Publications (1)

Publication Number Publication Date
FR689062A true FR689062A (en) 1930-09-02

Family

ID=9027077

Family Applications (1)

Application Number Title Priority Date Filing Date
FR689062D Expired FR689062A (en) 1930-01-29 1930-01-29 Improvements in the electrical reproduction of sound from recording discs

Country Status (1)

Country Link
FR (1) FR689062A (en)

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